What is the main unifying concept in biology, explaining how the diversity of life on Earth arose and how species change over time in response to changes in their environment?
a. evolution
b. biodiversity
c. environmentalismd.
d. development
Ans: a. evolution
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Which of the following is not an emerging virus?
A. HIV B. SARS C. influenza D. Epstein Barr E. All of these choices are emerging viruses.
What is the fate of electrons from NADPH during the Calvin cycle?
a. They are accepted by molecular oxygen, just like in cellular respiration. b. They are used to regenerate RuBP from G3P c. They are added to 3PGA. d. They are transferred to rubisco. e. They remain on NADPH to help drive the light reactions
Which components of an atom do not have a
charge? I. electrons II. protons III. neutrons a. I only b. II only c. III only d. I and II e. II and III
what does failure of tolerance result in?
What will be an ideal response?